Struct VgaBuffer

pub struct VgaBuffer { /* private fields */ }

Containa a pointer to slice of Vga buffer.

Implementations

impl VgaBuffer

pub const VGA_ADDR: usize = 753_664usize

pub const WIDTH: usize = 80usize

pub const HIGH: usize = 25usize

pub const LENGTH: usize = 2_000usize

pub const VGA_PTR: *mut VgaChar = {0xb8000 as *mut VgaChar}

pub const fn to_index(y: usize, x: usize) -> usize

This static methode converts 2D index to 1D index.

pub const fn to_yx(index: usize) -> (usize, usize)

This static methode converts 1D index to 2D index.

pub fn new() -> Self

Construct a VgaBuffer.

pub unsafe fn set_vgachar(&mut self, vchar: VgaChar, y: usize, x: usize)

Set VgaChar to (y,x) coordinates. Uncheck range.

pub unsafe fn get_vgachar(&self, y: usize, x: usize) -> VgaChar

Get VgaChar at (y,x) coordinates. Uncheck range.

pub fn as_slice<'a>(&self) -> &'a [VgaChar]

Video buffer to a slice.

pub fn as_mut_slice<'a>(&'a mut self) -> &'a mut [VgaChar]

Video buffer to a mutable slice.

let mut vga_buffer = VgaBuffer::new()
let buffer_slice = vga_buffer.as_mut_slice();
for vchar_ref in buffer_slice.iter_mut()
{
	let mut vchar = vchar_ref.get_volatile();
	vchar.codepoint = 0u8;
	vchar_ref.set_volatile(vchar);
}

Trait Implementations

impl Debug for VgaBuffer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl VgaBufferHal for VgaBuffer

type Item = VgaChar

fn set(&mut self, item: Self::Item, y: usize, x: usize)

Setter interface.

fn get(&self, y: usize, x: usize) -> Self::Item

Getter interface.